Changes during aging in the electroencephalographic cortical synchronization under visual stimulation

Bibliographic Data

ID16946038
AuthorsGuzmán Alba (0000-0001-9910-4886, Universidad de La Laguna, corresponding author), Almudena González (0000-0002-6235-829X, Universidad de La Laguna), Julián J González (Universidad de La Laguna)
Year2015
Volume6
Issue1
Pages15-26
Publication date2015-11-08
Open AccessYes
TypeARTICLE
VenueEuropean Journal of Investigation in Health, Psychology and Education (JOURNAL)
Journal identifiersISSN: 2174-8144 • E-ISSN: 2254-9625
PublisherMDPI AG (PUBLISHER • IT)
DOI10.1989/ejihpe.v6i1.145
OpenAlexW4251633935
LanguageEN
References cited1

This paper analyzes changes during aging in the electroencephalographic (EEG) synchronization between different areas of the cerebral cortex in healthy elderly subjects under visual stimulation. Two groups were selected: one (A) of 10 adults aged 50-65 years and another (B) of 15 subjects aged 66-80 years. EEG recordings of 16 "monopolar" channels were carried out (digitized at 256 Hz), all referenced to the mean and following the standard 10-20 system, and were performed at rest with eyes closed under visual stimulation. From an index (L) of nonlinear generalized synchronization, the average cortical synchronization (ACS) of each channel with the rest and the corresponding average asymmetry in the synchronization (ACM) was estimated. Changes with age (A vs. B) in cortical synchronization and in average interhemispheric asymmetry for all cortical areas were estimated via a repeated measures MANOVA. The results show that under visual stimulation, the SCM decreases with age for most channels (p

Audiology · Cerebral cortex · Electroencephalography · Stimulation · Telecommunications · Visual cortex · Computer Science · EEG and Brain-Computer Interfaces · Functional Brain Connectivity Studies · Medicine · Neural dynamics and brain function · Neuroscience · Psychology

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